A current of 1.5 A is passed for 2 hours through an aqueous solution of \(\mathrm{Pd} \mathrm{X}_{\mathrm{n}}\) where X is a monovalent anion. During the electrolysis process 2.977 g of Palladium metal gets deposited at the cathode. Calculate the charge on Pd ions. (Atomic mass of Pd \(=106.4 \mathrm{~g} / \mathrm{mol}\) ).

A complex compound in which the oxidation number of a metal is zero, is

Solubility product of the sparingly soluble salt \(\mathrm{AgBrO}_3\) in aqueous medium is \(9.3 \times 10^{-10}\) Calculate the mass in gram of \(\mathrm{AgBrO}_3\) present in 100 ml of its saturated solution.
(Molar mass of \(\mathrm{AgBrO}_3\) is \(236 \mathrm{~g} / \mathrm{mol}\) )

For the equilibrium, \(2 \mathrm{NOCl}(g) \rightleftharpoons 2 \mathrm{NO}(g)+\mathrm{Cl}_{2}(g)\), the value of the equilibrium constant, \(K_{C}\) is \(3.75 \times 10^{-6}\) at \(1069 \mathrm{~K}\). The value of \(K_{p}\) for the reaction at this temperature will be

Given below are 4 equations showing Molar conductivities at infinite dilution of various electrolytes. Which one of them represents the correct equation?
\(\begin{aligned}
& \left(\Lambda_m^0\right)_{N a B r}-\left(\Lambda_m^0\right)_{N a C l}=\left(\Lambda_m^0\right)_{\mathrm{KCl}}-\left(\Lambda_m^0\right)_{\mathrm{KBr}} \\
& \left(\Lambda_m^0\right)_{\mathrm{HCl}}+\left(\Lambda_m^0\right)_{\mathrm{KOH}}-\left(\Lambda_m^0\right)_{\mathrm{KCl}}=\left(\Lambda_m^0\right)_{\mathrm{H}_2 \mathrm{O}} \\
& \left(\Lambda_m^0\right)_{\mathrm{KBr}}-\left(\Lambda_m^0\right)_{\mathrm{NaBr}}=\left(\Lambda_m^0\right)_{\mathrm{NaBr}}-\left(\Lambda_m^0\right)_{\mathrm{Nal}} \\
& \left(\Lambda_m^0\right)_{N H_4 \mathrm{Cl}}-\left(\Lambda_m^0\right)_{\mathrm{NH}_4 \mathrm{NO}_3}=\left(\Lambda_m^0\right)_{N H_4 \mathrm{Cl}}-\left(\Lambda_m^0\right)_{N H 4 B r}
\end{aligned}\)

Among the complexes of Ni listed below, the following is the only correct statement about the given compounds.
I. \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]\)
II. \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\)
III. \(\left[\mathrm{NiCl}_{4}\right]^{2-}\)

The first ionisation enthalpy of Al in \(\mathrm{kJ} \mathrm{mol}^{-1}\) is:
[Given the first ionisation enthalpy of \(\mathrm{Na}, \mathrm{Mg}\) and Si in \(\mathrm{kJ} \mathrm{mol}^{-1}\) are 497, 738 and 787 respectively]

Arrange the following compounds in the decreasing order of reactivity towards \(\mathrm{S}_{\mathrm{N}} 1\) reaction.

A point object is placed on the optic axis of a convex lens of focal length \(f\) at a distance of \(2 f\) to the left of it. The diameter of the lens is \(d\). An eye is placed at a distance of \(3 f\) to the right of the lens and a distance \(h\) below the optic axis. The maximum value of \(h\) to see the image is

If \(\frac{2}{9 !}+\frac{2}{3 ! 7 !}+\frac{1}{5 ! 5 !}=\frac{2^{a}}{b !}\), where \(a, b \in N\), then the ordered pair \((a, b)\) is

A wooden box excavated from Indus valley had an activity of \(1.18 \times 10^{13}\) disintegration per minute per \(g\) of carbon. What is the approximate age of this civilisation?

The particular solution of \(e^{\dfrac{d y}{d x}}=2 x+1\) given that \(y=1\) when \(x=0\) is

The reaction, \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{I}+\mathrm{KOH}(a q) \longrightarrow\) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}+\mathrm{KI}\) is classified as